You need a special Digivolve... Rack up 20 DP or more if necessary.
If you want to digivolve in an ultimate of the same color, it takes
less. Now, put a champion directly in play at half power. It does
not matter since it will not stay long. Use your special digivolve
and evolve into any ultimate. Even if your champion was only half
power, your ultimate is at full capacity. This trick will not work
with speed digivolve or any other digivolve card except download
digivolve.

This trick only works when you fight with Betamon, and he uses the
pick up deck. First, obtain a partner card in your 1st hand. Use
your partner, but do not Armor Digivolve. Never discard a card --
you have to use them all as support or DP (this is important, never
lose your partner card, you need obtain a no loss win). Kill 2 of
your enemies by only using the same attack (only Circle, Triangle or
X as you prefer). When you fight with the last opponent, keep using
the same attack, but when you are sure of your victory in that turn,
use a gamble or nothing card. If you followed those steps, you can
easily obtain: 30 points of your enemies, No Digivolve Win, No Loss
Win, Last Gamble Win, Ultimate Level Win (because Betamon only use
level U cards, he does not have R or C cards, so he is easy), No
Discard, Partner Win, all ? Attack win, and your super bonus of 10
points. This is more than 50 points.

Fire: Imperdramon
Ice: Vikemon
Nature: Valkyrimon
Dark: Apakromon
Rare: Puppetmon
Hint: Better cards:
Win a certain arena repeatedly to get better cards each time.
Hint: Double your cards:
This trick requires 2 memory cards. Copy your game to the 2nd
memory card, then give all of your cards from the copied file to the
original file. *** This does not work with the 7's cards, Download
Digivolve, and Rosemon's Lure.

Easy way to Digivolve into U (Ultimate and Mega):
You must have the Warp Digivolve Card, and have at Least 40
Digivolve Points. As a Rookie, you must have the same type Rookie as
the U you are going to Digivolve into. After you have 40 DP, look at
the Warp Digivolve card, and it will read "OK!". Use this, and if
you have a U level on the board, you can warp Digivolve into U
easily.

Water special Digimon:
If you are specializing in Water special Digimon, and only collect
cards of water, then use the following trick. When you fuse 2
Cards, it will always come out as a Water Type. To get a Water Type
Card, you must fuse a Fire type and ? type.

To get the Digmon card, choose Armadillomon as a partner card at the
beginning of the game. When you get to Flame City, successfully
defeat Veemon, and go to the Battle Cafe. Chat to Davis and he will
give you the Digmon card. Use good Digi parts on him, and he will be
invincible.

Defeat Beginner City and move to Flame City. From there, defeat the
Battle arena. Return to the Battle Cafe and chat to Davis. He will
reward you with the Digi Egg Of courage and explain the art of Armor
Digivolving.

Defeat an Ultimate level Digimon with an Rookie level Digimon.
Alternatively, digivolve to Ultimate level and win a fight. *** If
you defeat an Ultimate level with an Rookie level, consider that
Digimon good luck -- defeating a Ultimate level Digimon seems to
make your Digimon stronger.

Hint: Partner win:
Win a battle with your Digimon partner.

Hint: Comeback win:
Start with a Rookie, a Champion, and an Ultimate of the same
specialty. Intentionally allow the 2 other rookies to die, then
digivolve into Ultimate and defeat the rest of his Digimon.

Water is probably the best deck to have. The Digimon have high HP,
the DP is not too high, and the attack is not too low. Put about
twenty Digimon (suggested 5 U, 5 C, 7 R, 3 RP) in the deck. Fill up
the last 10 cards with recovery items (Having Speed Digivolve and
Warp Digivolve is also recommended). By keeping the water's HP high,
your opponent will have a hard time KOing them.

*** This is useful when fighting against a Fire Digimon. Have an
Ice Rookie Digimon on the field, then Digivolve to an Armor,
Champion, or Ultimate Ice Digimon whose X attack has the "X3 fire".
Use the X attack and use Ikkacomon as a support card. For example,
if Tylomon's attack is 260, by using the X attack it will be
multiplied by 3 (780), and with Ikkacomon's Support effect to
multiply by three, gives an attack of 2370.

Description: At one point in the game, you are going to have to fight a card
duelist named "A", or in other cases, Analogmon. At the beginning of
the battle, Analogmon will use some sort of special code and will
send all your partner cards to the bottom of the deck. This is one
of the toughest battlers in the entire game. In order to win, you
have to follow the following strategy. At the start of the battle,
Analogmon will send out Demidevimon. He will then use this "Download
Digivolve" option card which will make him digivolve to Ultimate
immediately. When he does this, he becomes Apokarimon, the strongest
card ever, with an attack power of 990 and HP of nearly 3000. There
is only one easy way to defeat him. Make sure you have Veemon with
his Digi-egg of Courage ready. *** To get Veemon at the beginning
of the battle, purposely send all of your cards offline until you
get all of your partner cards in your hand. Select Veemon and
Armor-Digivolve to Flamedramon. When you have the choice of attack,
select X, so you do a counter attack. When you counter Apokarimon's
Circle attack, he receives a damage of 990. Keep repeating this
technique to defeat his 1st Digimon. *** He has only one
Apokarimon. Apokarimon will always use the Circle attack until it is
a successful attack.

Have Hacking card in your deck. Look for it and use it as a support
card with a Rookie and your HP will switch with Apokarimon or use a
"Data Copy Card".

Get a Digimon whose X attack is O To Zero card and a Partner Finder.
Use the Digimon with O To Zero and keep using X. When you get
Partner Finder, use it. Do not use a Digimon with O counter because
he will use the Triangle attack and use Grand Sevens (multiply own
attack power by own health x 100).

This is the last and the strongest Boss. He cheats by using download
digivolve to digivolve into Apokarimon, the strongest card.

"A" (Analogman) is a cheap hacker. Being only half-way through the
game, you should go through Wiseman Tower many times before taking
on the Infinity Tower. Upon being able to fight "A" in the Battle
Arena, make sure you have a good deck. It is rumored that "A"'s
Aporkarimon will continually use Circle until it is successful. If
that does not work, build a Red deck with many options and is
offensive using the auto-deck function. Make sure your deck has 4
Solarmons, at least 2 Hackings and 2 Data-Copies. About 3
Bombernanimons, a couple of Candlemon and Biyomon may also be
useful. Use more options such as Data-Copy and Hacking. Options like
Suka's Curse, Heap of Junk and Digimon Grave are also very useful
when it comes to destroying "A"'s deck before he uses the cards. You
should not have many healing or power up cards, as they can be
substituted for Hackings, Data-Copies and discard cards. To destroy
the Apokarimon, send all bad hands to the discard heap until you get
one of 4 Solarmon and get either a Datacopy or Hacking. Now,
crash all over Aporkarimon. With Venomyotismon, try to use a discard
card rather than a Data-Copy or Hacking as your Solarmon will die
anyway. If you refrain from gambling and play with common sence,
"A"'s 7s cards will be in the discard piles doing nothing. At the
end of "A"'s deck, he will use his 7s Reverse card, which sends 10
cards back to the online deck. However this poses no threat as he
should be on his last Digimon, who will most likely be a battered
Guardromon. Finish it off quickly. During the battle, if you do not
have a Solarmon, send out a Bombernanimon that is weakened by half
and still use it to crash. Do not be afraid to make "A" discard
cards from his hand and online deck. This will get rid of the 7s and
his 2nd Apokarimon.

Digivolve without DP, and also digivolve into any level including
R~R.

Go to Beginner's City after defeating Analogmon, and Rosemon will be
there. Defeat her somewhere between 10 to fifteen times and she
will give you the Download Digivolve. This is the best digivolve
option card in the game.

Use the following trick to get a deck so powerful that it is
possible to start with a level U Digimon at full power in every
match. First, defeat A (Analogmon). He is in the 3rd area,
Infinite Tower. Now, defeat Rosemon about eleven times to get
Download Digivlove (first area, Beginner City). ) ut your partner
cards in your deck (for experience) and get as many level U Digimon
as you can. Try doing the Wiseman Tower arena several times as well
as Wizardmon's wand thing. Put the strongest level U Digimon in your
deck (no level C or R, except for partners). Now, put the Download
Digivolve in your deck. You can put more option cards if desired,
but only 2 or 3 are recommended. *** You should have about
24 level U Digimon in your deck strategy. Keep drawing cards until
you either get a partner with a Digi Egg or the Download Digivolve P
with Digi Eegg. Armor Digivolve and start winning some rounds. If
you get low on HP, keep drawing until you get Download Digivolve and
Digivolve to level U. Digivolve directly to level U and pretend you
are "A".

To unlock the never-ending Agumon cards that appear only in fusion,
get 6 Flarizamon cards and 6 Darkizamon cards. After that, defeat
Veemon in Flame City in the arena. Now, save your game. Next, go to
the fusion shop. Check the Agumon. You should have 255 Agumon cards.
*** When this was done with Veemon as a partner.

This is the best fusion cheat there is basicly.. and I have not seen it anywhere yet and it beats the hell out of the 255 agumon cheat.
So all you have to do is have the quick digivolvedeck that vegimon uses and all the card that go with it. First make a new deck (name doesnt matter) and chose from a base deck. Choose the quick digivolvedeck and once you have done that go to the 3rd fusion shop at wisemon tower. Then get rid of all your lillymon cards by fuseing them together. After that make a 2nd quick digivolvedeck (keeping the first quick digivolve deck) and after that go to the fusion shop again and you shuold have 254 lillymon's to fuse.. now I think it can be done with any deck basicly.. but I did it on the quick digivolve deck becuase I know that one works for sure and cards are easy to get. Try and experiment with other decks with even better cards in them. I hope this helps whoever still plays card battles :) .

Some people said that you had to defeat Rosemon from ten to fifteen times in beginner city after defeating A or Analogman but I want to tell you that you should not save the game before you defeat Rosemon from ten to fifteen times to get the Download Digivolve from Rosemon